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參數資料
型號: 935262451518
廠商: NXP SEMICONDUCTORS
元件分類: 顏色信號轉換
英文描述: COLOR SIGNAL DECODER, PQFP100
封裝: 14 X 14 X 1.40 MM, PLASTIC, SOT-407, LQFP-100
文件頁數: 137/144頁
文件大?。?/td> 592K
代理商: 935262451518
2000 Mar 15
92
Philips Semiconductors
Preliminary specication
PAL/NTSC/SECAM video decoder with adaptive PAL/NTSC
comb lter, VBI-data slicer and high performance scaler
SAA7114H
15.2.4
SUBADDRESS 03H
Table 40 Analog input control 2 (AICO2); 03H[6:0]
15.2.5
SUBADDRESS 04H
Table 41 Analog input control 3 (AICO3): static gain control channel 1; 03H[0] and 04H[7:0]
15.2.6
SUBADDRESS 05H
Table 42 Analog input control 4 (AICO4); static gain control channel 2; 03H[1] and 05H[7:0]
BIT
DESCRIPTION
SYMBOL VALUE
FUNCTION
D6 HL not reference select
HLNRS
0
normal clamping if decoder is in unlocked state
1
reference select if decoder is in unlocked state
D5 AGC hold during vertical
blanking period
VBSL
0
short vertical blanking (AGC disabled during equalization
and serration pulses)
1
long vertical blanking (AGC disabled from start of
pre-equalization pulses until start of active video (line 22 for
60 Hz, line 24 for 50 Hz)
D4 white peak off
WPOFF
0
white peak control active
1
white peak off
D3 automatic gain control
integration
HOLDG
0
AGC active
1
AGC integration hold (freeze)
D2
gain control x
GAFIX
0
automatic gain controlled by MODE3 to MODE0
1
gain is user programmable via GAI[17:10] and GAI[27:20]
D1
static gain control channel 2
sign bit
GAI28
see Table 42
D0
static gain control channel 1
sign bit
GAI18
see Table 41
DECIMAL
VALUE
GAIN
(dB)
SIGN BIT
03H[0]
CONTROL BITS D7 TO D0
GAI18
GAI17
GAI16
GAI15
GAI14
GAI13
GAI12
GAI11
GAI10
0...
3
0
00000000
...144
0
1
0
1
0
145...
0
1
0
1
0
1
...511
+6
1
DECIMAL
VALUE
GAIN
(dB)
SIGN BIT
03H[1]
CONTROL BITS D7 TO D0
GAI28
GAI27
GAI26
GAI25
GAI24
GAI23
GAI22
GAI21
GAI20
0...
3
0
00000000
...144
0
1
0
1
0
145...
0
1
0
1
0
1
...511
+6
1
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